251012289

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{161839}}^1$

素因数の和:161900

約数の個数: 16

約数和(自身を含む): 372879360

約数和(自身を除く): 121867071

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 161839, 485517, 1780229, 5340687, 7606433, 22819299, 83670763, 251012289]

約数ペア:

[(1, 251012289), (3, 83670763), (11, 22819299), (33, 7606433), (47, 5340687), (141, 1780229), (517, 485517), (1551, 161839)]